Shock-absorbing motor-cycle rear seat.



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Patented Nov. y21, 1916.

F. M. STOLL.

SHOCK ABSORBING MOTDR CYCLE REAR SEAT.

APPLICATION FILED 06h12. 1912.

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WITNESSES:

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FRANK lVI. STOLL, DENVER, COLORADO.

SHOGK-ABSORBING MOTOR-CYCLE BEAR SEAT. Y

Application iiiedeciober s,

To all whom it may concern Be it knownthat I, FRANK M. STOLL, a citizenof the United States, residing in the city and county of Denver andState of Colorado, have invented new and useful Improvements inlShock-Absorbing Motor- Cycle Rear Seats; and I do declare the followingto be a full, clear, and exact description of my invention, such as willenable others skilledV inthe art to which it appertains to make and usethe same, reference being had to the accompanying drawing, and to thefigures ofvreference marked thereon, which form a part ofthisspecification.

My invention relates to improvements in shock absorbing-motor-cycle rearseats and has for its object the provision of a device of this characterconstructed to effectively absorb all shocks and jars incident to thetraveling of a motor-cycle over rough ground. Y

Another object of the invention is to provide a deviceof thecharacterspecified which is simple and inexpensive in manufacture and eflicientin use. f

Another object of the invention is to provide a deviceof the characterspecified provided with a foot rest which may be adjusted to suit thetastes of the rider.

In the use of my invention, many other objects and advantages embodiedin the construction and the arrangement of the-invention will readilyappear, and I wish it understood that all such objects and advantagesare anticipated and within the scope ofmy invention.

I will now4 proceed to describe my invention with reference to theaccompanying drawing forming a part hereof. Y

In this drawing,-Figure 1 is a side elevation of my seat illustratingits application to the motor-cycle; Fig. 2 is a detail View of acylinder and a spring actuated piston which is used as a connectionbetween the seat proper and themotor-cycle frame; Fig. 3 is a detailview showing the manner in which the seat is yieldingly supported inposition on the motor-cycle frame, the said view showing the cylinder inlongitudinal section; Fig. et is a detail view of the adjustable footrest. t

In the drawing I have shown only one side of the frame work composing myshock absorbing motor-cycle rear seat, but it must be understood thatanother part. similar in Specification of Letters Patent.

Patented Nov. 21, 1916.

1912. serial No. 724,613.

all respects to the side illustrated in Fig. 1 of the drawing, isarranged on the opposite side of the` rear wheel of the motor-cycle andthat the two -sides are connectedv by suitable transverse bars Vorbraces. To show both sides of this seat would involve the necessity ofmaking several additional views of the drawing and since merely one sideof the seat will suffice to illustrate the construction and principlesinvolved, itis not considered necessary .to go, into further` detailwith'respect to thermanner in which the two sides of the'seat areconnected together.

Corresponding and like parts are referred to in the followingdescription and indi-V cated in all. of the views in the accompanyingdrawing by the same reference characters.

Let, the numeral 5 designate 'the rear fork of a*n1otorcycle frame inwhich the rear wheel is` journaled. It' is understood that the rear seatis sup-ported in position over the rear wheel of thermotor-cycle. Thesame consists of aframe composed of members 8, 9 and 10-j whichv memberscompose one side of the seat, it being understood that memberscorresponding in all respects are arranged on Vthe-opposite siderof thewheelV and form'the `other side ofthe seat. On top of `the 'frame work,I arrange a suitable cushion 12 cut out on opposite sides of its forwardpart, as shown at 13, to receive the legs of the rider. VTo the axle ofthe rear wheel I secure a' member l/-L which is provided with a sectorslot 15, receiving a pin 16 mounted upon a vertically disposed cylinder17, the said pin being held in the slot by means of a nut 1S threaded onthe outer extremity of the said pin. The lower extremity of the cylinder17 is received in a cup shaped device 19 `having an arm 20 pivoted tothe member 14, as shown at '21. Through the cylinder 17 a rod 22 ispassed, the upper extremity of said rod-being secured to the member 9 ofthev seat, as shown at 23, while the lower extremityof the said rodexteriorly of the cylinder 17 is turned upwardly, forming ai loop 24 andis secured to a substantially horizontally disposed part 25 of themember 10. In the cylinder 17 I arrange a spiral spring 26 whichsurrounds the 'rod22, one extremity of the said spring engaging thelowerextremity of the cylinder, while the upper extremity of the saidspring is engaged by a member 27 formed upon the rod 22 within thecylinder 17. Also within the cylinder 17 surrounding the rod 22, abovethe member 27, l arrange an equalizing spiral spring 2S, the upperextremity of said spring engaging the upper extremity or said cylinder,while the lower extremity' of said spring engages the member 27. Aspointed out in the foregoing, it is understood that both sides of thescat are constructed substantially the same in every respect.

From the foregoing description it will be understood that the rods 22are permitted to slide in the said cylinder against the tension of thesprings 26 and 28. rlhe seat is therefore supported entirely by thesprings 26 which absorb or take up the concussion or shoc is incident tothe traveling of the mortor-cycle over rough ground.

In Fig. 2 of the drawing, I have shown a letail view of a cylinder andspring actuated piston, by virtue of which the seat is permitted toyield in the direction in which the motor-cycle is traveling. rihiscylinder is designated by the reference character 29, .vhile the pistonis designated by the reference character 3U and the spring by thereference character 31. A collar 32 is secured to the rear fork of themotor-cycle and the cylinder 29 is pivotally connected with said collar,as shown at 33. One extremity of the piston 30 is provided with a numberof perforations 84, through which a pin 35, secured to the cylinder 17,is adapted to be passed, the said piston being held on said pin by meansof a nut 36. The inner extremity of the piston 30 is provided with a nut87, While the outer extremity of the cylinder 29 is providedwith aninwardly extending stop liange 38, the spiral spring 31 surrounding thepiston 30 and enga-ging the one extremity by the nut 37, while theopposite extremity of said spring engages the stop flange 38. It isunderstood that each of the cylinders 17 are connected by means of oneof these cylinders 29 and spring actuated pistons 30.

F rom the foregoing description it will be understood that while themotor-cycle is traveling over rough ground the seat will yieldsimultaneously in a vertical and lateral direction, resulting incompletely absorbing all shocks or jars incident to the traveling of themachine over rough ground. As illustrated in the drawing, the entireframe work composing the seat is pivoted as shown at 21, wherebythe'seat will be permitted to yield laterally or in the direction inwhich the machine is traveling against the tension of the spring 81, thesaid spring 31 always having a tendency to right the seat or to retainit in its normal position. As the s'eat moves laterally, the pin 16 willifollow or move in the sector slot 15, the said pin, of

course, limiting the lateral movement of the seat when the pin reachesthe extremities of said slot.

It can be readily seen that, by virtue of the construction enabling theseat to simultaneously yield vertically and laterally, a maximum degreeof shock absorption is accomplished.

Attention is here called to the tact that the member 14 is provided witha plurality of perforations 39 through which the rear axle of themotor-cycle is adapted to be passed, the said perforations permitting ofadjustment of the seat with respect to the wheel of the motor-cycle.

By virtue of the fact that the lower extremity of the rod 22 is curvedupwardly, as designated by the reference character 24,

a path for the upward and downward play i of the rod 22 is permittedwithout comingV into contact with the lower extremity of the cylinder17.

By referring to Fig. 1 of the drawing it will be seen that thehorizontallyldisposed part 25 of the member 10 is provided with adepending part 40, bent outwardly at right angles, as shown at 41, andon this depende ing part 40 I slidably mount a toot rest 42, thedepending part 40 passing through an opening formed at one extremity ofsaid toot rest, whereby the said foot 'rest 42 may be moved upwardlyY ordownwardly on the depending part 40 for the purpose of adjustingsaidfoot rest to suit the comfort and convenience of the rider. The oppositeextremitiesof this foot rest 42 are provided with upwardly turned parts43 and 44, the part 44 resting against one side of the depending member40 when the foot rest is in the operative position, and accomplishingthe rest inwardly, resulting in holding the said i foot rest in theinoperative position. TheV understood that the back rest proper,designated by the reference character 47, consistsrof a transversecushion member near the opposite extremities on which the arms 48 aresecured, there being an arm to correspond with each side of the framecomposing the seat.

As a means of adjusting my improved seat to a larger width oi'motor-cycle frame, I employ collars or washers 51 and 52, which may beeither placed on the outer or inner side of the member 141. In otherwords, by interposing these collars or wash-p ers 51 and 52 between themember 14 and the cylinder 17, the motor-cycle seat 'frame may be madeto it a relatively narrow m0- tor-cycle frame, and by placing the saidcollars on the inner side of the member 14:, the width or distancebetween the two members 14': will be extended, making the motorcycleseat frame adapted to a. relatively wider' motor-cycle frame.

By referring to Fig. 3 of the drawing, it will be noted that I haveformed an opening 53 through the member 27 of the rod 22, which openingis adapted to register with openings 5st formed in the cylinder 17, saidopenings registering when there is no weight on the seat. Vhen theseopenings are thus in register, a pin may be passed through the same forholding the seat in a stationary position or for preventing the samefrom vibrating when not in use or carrying the rider. Y Y

lVhile I have described and illustrated herein a specific form of myinvention, it is understood that I am not limited` thereto and that thesame may be modified and varied without departing from the spirit of myi vention or the domain oi the appended claims.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1. A shock absorbing motor-cycle rear seat, comprisinga frame, members secured to the axle of the motor-cycle, said membershaving sector slots at their upper extremities, cylinders pivotallyconnected with said members, spring actuated pistons arranged withinsaid cylinders and supporting the said trame, the said cylinders havingparts received in said sector slots of said members, and spring actuatedmeans connecting the said frame with the frame work of the m0- tor-cycleat angles to the said cylinders, substantially as described. Y

2. A vehicle seat, comprising a frame, members secured to the frame workofV the vehicle and having sector shaped guides at their upperextremities, cylinders pivoted to said members, spring actuated pistonsarranged within said cylinders and supporting the said frame, the saidcylinders having parts received by said sector shaped guides,

and spring actuated means connecting Vthe hicle at angles to the saidspring actuated rods, said means comprising cylinders pivoted at oneextremity to the frame work of the vehicle, and spring actuated pistonsarrangedV within the said cylinders and pivotally connected with theseat frame, substantially as described.

4. A vehicle seat, comprisinga seat frame, members secured to the framework of the vehicle and havingv sector shaped guides, cylinders pivotedto said members, spring actuated pistons arranged within said cylindersand supporting the saidseat frame, the

said cylinders having parts received by said sector shaped guides, andtension yielding means connecting the said seat frame with the vehicleframe at angles to the said cylinders.

A vehicle seat, comprising a seatproper,

memberssecured to theV frame work of the vehicle and having sectorshaped guides, cylinders pivoted to said'members, spring Yactuated meansarranged within said cylinders, and supporting the said seat proper, thesaid cylinders having parts received by said sector shaped guides, andyielding means connecting said cylinders with the vehicle frame atangles to said cylinders.

6. A vehicle seat, comprising a seat frame,

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multaneously yield in vertical and lateralV directions.

7. A vehicle seat, comprisingaseatproper, Y Y

spring retaining members pivotally connected with the vehicle frame,springs recurved upwardly to'their connecting point 1,3'

with said seat proper, and yielding means connecting said seat in alateral direction With said vehicle frame.

8. A Vehicle seat, comprising a seat frame, spring retaining memberspivotally connected With the vehicle frame, members passing through saidspring retaining members and connected both Vat their upper and lowerextremities with said seat frame, springs retained by said springretaining members land engaged by said members Which pass through saidspring retaining members, and said members which pass through saidspring retaining members haying their lower extremities curved upwardly15 to their connecting point with said seat frame.

In testimony whereof I a-iilX my signa.- ture in the presence of twoWitnesses.

FRANK M. STOLL.

Witnesses:

JNO. G. POWELL, ALVINA HrNToMErs'rnn.

Copies of this patent may be obtained for ve cents each, 'by addressingthe Commissioner of Patents, Washington, D. C.

